No one may threaten or commit violence ('aggress') against another man's person or property. Violence may be employed only against the man who commits such violence; that is, only defensively against the aggressive violence of another. In short, no violence may be employed against a non-aggressor. Here is the fundamental rule from which can be deduced the entire corpus of libertarian theory.

Throughout history governments have been chronically short of revenue. The reason should be clear: unlike you and me, governments do not produce useful goods and services that they can sell on the market; governments, rather than producing and selling services, live parasitically off the market and off society.

The costs of government are bound to be much higher than those of the free market. . .The State cannot calculate well and therefore cannot gauge its costs accurately.

All interstate wars intensify aggression – maximize it … some wars are even more unjust than others. In other words, all government wars are unjust, although some governments have less unjust claims.

Money is the general medium of exchange. It is the thing for which all other goods are traded, the means of final payment for such goods on the market.

Subjectivism is not an absolute principle; it is a necessary but not sufficient condition for sound methodology.

I see the liberty of the individual not only as a great moral good in itself (or, with Lord Acton, as the highest political good), but also as the necessary condition for the flowering of all the other goods that mankind cherishes: moral virtue, civilization, the arts and sciences, economic prosperity.